[2] For example, the project removed 16 feet of hill near the Allegheny County Courthouse, meaning that the former basement became the modern ground level.

[2][3] The extreme south end of Grant Street—near the Monongahela River and Boulevard of the Allies intersection—was home to Pittsburgh's Chinatown from the 1880s until the 1950s.

[4] Grant Street has long been a central area for civic events, including longtime Mayor and Pennsylvania Governor David L. Lawrence's funeral procession in November 1966 attended by Robert F. Kennedy, mayors Joseph M. Barr of Pittsburgh, Jerome Cavanagh of Detroit, James Tate and Richardson Dilworth of Philadelphia, governors William Scranton, James H. Duff, Raymond P. Shafer and John S. Fine along with President Lyndon B. Johnson staff members Robert E. Kintner and W. Marvin Watson, Secretary of Agriculture Orville Freeman and Secretary of the Interior Stewart Udall.

[5][6] The American Planning Association named Grant Street one of its 10 Great Streets for 2012, describing it as "Pittsburgh's finest collection of historic buildings and modern skyscrapers, buildings that tell the stories of 20th century aristocrats and architects who shaped the city into an industrial and banking empire.

[8] After the death of Pittsburgh Mayor Richard Caliguiri, his successor Sophie Masloff pursued changing the name of Grant Street to Richard S. Caliguri Boulevard[8] However, resistance to changing the historic street name, even for the beloved deceased mayor, halted that effort.